where \(J_{\nu }(x)\)  is the (classical) Bessel function of the first kind [1]} of order \(\nu \) ,
\( J_{\nu }(x):= \left(\frac{x}{2}\right)^{\nu } \sum _{k=0}^{+\infty }\frac{(-1)^k\big (\frac{x}{2}\big )^{2k}}{k!\Gamma (\nu +k+1)} ,\) 
